CN211490237U

CN211490237U - Welding tool for connecting shaft of shock absorber

Info

Publication number: CN211490237U
Application number: CN201922216353.6U
Authority: CN
Inventors: 钱树军; 朱永峰
Original assignee: Suzhou Habi Hemu Mechanical And Electrical Technology Co ltd
Current assignee: Suzhou Habi Hemu Mechanical And Electrical Technology Co ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-09-15
Anticipated expiration: 2029-12-11

Abstract

The utility model discloses a welding frock for bumper shock absorber connecting axle relates to the technical field of welding frock, aims at solving and relies on staff's experience to operate, and the inevitable production has the deviation when leading to the welding of rigid connection spare because reasons such as misoperation, leads to the improper problem of the body of rod and snap ring cooperation. The technical scheme is that the welding tool for the connecting shaft of the shock absorber comprises a tool groove for accommodating the connecting shaft, wherein the length of the tool groove is equal to that of the connecting shaft, and the width of the tool groove is greater than the height of a clamping ring; one side in frock groove slides and is provided with the locating piece, and the locating piece offsets with the snap ring, has seted up the location on the lateral wall of the one side that the frock body is close to the locating piece and has led to the groove, and the location leads to the groove by the lateral wall of frock body to the extension of frock groove direction and with frock groove intercommunication, and the logical female connection in groove has the locating lever of location, and the locating lever passes the location and leads to the groove and stretch into the frock inslot and offset with the locating. The effect of accurate welding has been reached.

Description

Welding tool for connecting shaft of shock absorber

Technical Field

The utility model belongs to the technical field of the technique of welding frock and specifically relates to a welding frock for bumper shock absorber connecting axle is related to.

Background

In the field of automobiles, an automobile transmission shaft is a shaft capable of transmitting power in a transmission shaft of a universal transmission device, and is a rotating body with high rotating speed and less support, so that the dynamic balance of the automobile transmission shaft is very important. The transmission shaft assemblies are provided with connecting shafts, and the connecting shafts can be connected with two transmission shafts, so that collision acceleration can be buffered better. When the connecting shaft of the related shock absorber is manufactured, the connecting shaft is manufactured in a welding mode, and the accuracy of the connecting shaft in welding is very important for the practicability of the connecting shaft.

The prior chinese patent with publication number CN206036064U discloses a transmission shaft assembly, which includes a first transmission shaft, a second transmission shaft, and a rigid connector (i.e., a connecting shaft) connected between the first transmission shaft and the second transmission shaft and broken at a first predetermined pressure F1; the rigid connecting piece comprises a rod body and clamping rings at two ends of the rod body, and the two clamping rings are respectively sleeved outside a first cylinder body on the first transmission shaft and a second cylinder body on the second transmission shaft. The existing connection mode of the rod body and the clamping ring is direct welding, and the rod body and the clamping ring are welded after being estimated to correspond well.

The above prior art solutions have the following drawbacks: the welding mode of current connecting piece is for relying on staff's experience to carry out direct welding, is about to the connecting piece is placed and is welded on the plane, and direct welding's mode is because there is not special spacing tool's cooperation, has the deviation when leading to the welding of rigid connection spare owing to reasons such as misoperation inevitable, leads to body of rod and snap ring improper cooperation for the unable normal use of work piece.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a welding frock for bumper shock absorber connecting axle, the effect of the accurate nature of welding when it has the snap ring that improves the welding connection axle and the body of rod.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a welding tool for a connecting shaft of a shock absorber comprises a tool body, wherein a tool groove for accommodating the connecting shaft is formed in the tool body, the length of the tool groove in the direction from one clamping ring to the other clamping ring of the connecting shaft is equal to the length of the connecting shaft, a positioning block is arranged in the tool groove in a sliding mode along the axial direction of the clamping ring, and the positioning block abuts against the clamping ring; the fixture comprises a fixture body, and is characterized in that a positioning through groove is formed in the outer side wall of one side, close to a positioning block, of the fixture body, the positioning through groove is formed in the outer side wall of the fixture body, extends towards the direction of the fixture groove and is communicated with the fixture groove, a positioning rod is connected to the positioning through groove in an internal thread mode, and penetrates through the positioning through groove to stretch into the fixture groove and abut against the positioning block.

Through adopting above-mentioned technical scheme, the connecting axle is placed at the inside frock inslot of frock body, comes the connecting axle chucking at the frock inslot through the setting of restriction frock groove length and locating piece, then carries out spot welding to the snap ring and the body of rod to this is carried out the pre-fixing of connecting axle.

The utility model discloses further set up to: the side wall of the tool body, which is provided with the positioning through groove, is provided with two guide grooves, and the two guide grooves are respectively positioned at two sides of the positioning through groove; the positioning block is provided with communicating grooves corresponding to the two guide grooves respectively, guide rods are arranged in the guide grooves in a sliding mode respectively, the guide rods extend into the communicating grooves from the guide grooves, and the guide rods are fixedly connected with the communicating grooves.

Through adopting above-mentioned technical scheme, the setting of guide bar can make the locating piece more stable when sliding in the frock inslot, because the locating piece is the setting of sliding, guide bar and intercommunication groove fixed connection can play the effect of consolidating the locating piece.

The utility model discloses further set up to: a pair of limiting holes are formed in the inner side wall, far away from the positioning rod, of the tool groove along the width direction of the tool body, and fixing rods are arranged in the limiting holes; the two limiting holes respectively correspond to the positions of the two clamping rings, and one end, close to the tool groove, of the fixed rod abuts against the corresponding clamping ring; the second spring that provides the elasticity towards the tool groove direction for the dead lever is established to the cover on the dead lever, be provided with on the dead lever and prevent that the dead lever from breaking away from spacing hole's locating part.

Through adopting above-mentioned technical scheme, the setting of dead lever can play the effect of fixed snap ring for it is more convenient when welding snap ring and the body of rod, the setting of second spring also can reach and assemble more accurate purpose when packing into the connecting axle into the tool groove.

The utility model discloses further set up to: the limiting part comprises a limiting screw, a first counter bore communicated with the limiting hole is formed in the outer side wall of one end, provided with the limiting hole, of the tool body, and the limiting screw is located in the first counter bore; an inner groove is formed in one end, close to the first counter bore, of the fixed rod, the rod portion of the limiting screw penetrates through the first counter bore to be in threaded connection with the inner groove, and the head of the limiting screw abuts against the bottom wall of the first counter bore.

Through adopting above-mentioned technical scheme, stop screw and dead lever threaded connection, when stop screw and annular piece offset, can inject the position of dead lever, prevent that the dead lever from slipping into the frock groove.

The utility model discloses further set up to: the end face of the clamping ring inclines towards the inner side wall, and the end face of one end, close to the tool groove, of the fixing rod is a truncated cone-shaped end face corresponding to the clamping ring.

Through adopting above-mentioned technical scheme, mounting terminal surface is corresponding with the snap ring terminal surface for the contact of dead lever and snap ring is inseparabler, and after packing into the frock groove with the connecting axle, the terminal surface of dead lever and the terminal surface card of snap ring and make the fixed of connecting axle more stable.

The utility model discloses further set up to: a fixing hole is formed in the inner side wall, away from the positioning rod, of the tool groove along the width direction of the tool body, the fixing hole is located between the two limiting holes, a limiting rod is arranged in the fixing hole, and one end, close to the tool groove, of the limiting rod abuts against the rod body; a second counter bore communicated with the fixing hole is formed in the outer side wall of one end, provided with the fixing hole, of the tool body, and a screw is arranged in the second counter bore; and one end of the limiting rod, which is close to the second counter bore, is provided with a limiting groove, the rod part of the screw passes through the second counter bore to be in threaded connection with the limiting groove, and the head of the screw is abutted against the bottom wall of the second counter bore.

Through adopting above-mentioned technical scheme, the setting of gag lever post plays the effect of fixing a position the body of rod to two snap ring intermediate positions, only needs to offset the body of rod and gag lever post can the accurate positioning gag lever post the position.

The utility model discloses further set up to: the guide rod comprises a rod body and a rod head, the diameter of the rod head is larger than the inner diameter of the annular block, and the inner diameter of the annular block is equal to the diameter of the rod body; two all be provided with first spring in the guide way, first spring housing is established on the pole body and one end and pole head counterbalance, and the other end offsets with cyclic annular piece.

Through adopting above-mentioned technical scheme, when finishing taking out with connecting axle spot welding, outwards screw out the locating lever, first spring can drive the locating piece under the effect of resilience force this moment and reset, makes the connecting axle conveniently take out.

The utility model discloses further set up to: one end of the positioning rod, which is far away from the tool groove, is connected with a rotating block, and a rotating handle is fixedly connected to the outer wall of the rotating block.

Through adopting above-mentioned technical scheme, the setting of rotation handle for be convenient for more operate when rotating the locating lever and carrying out fixed connection axle.

To sum up, the utility model discloses a beneficial technological effect does:

1. through the arrangement of the tool body, the tool groove, the positioning block and the positioning rod, the connecting shaft can be fixed in the tool groove, so that the subsequent spot welding operation is facilitated;

2. through the setting of guide bar, dead lever, can make the connecting axle fix its snap ring when the frock groove and the correspondence of the body of rod more accurate.

Drawings

FIG. 1 is a schematic view showing the overall structure of a damper connecting shaft according to an embodiment;

FIG. 2 is a schematic overall structure diagram of a damper connecting shaft and a welding tool for the damper connecting shaft according to an embodiment;

FIG. 3 is a sectional view of the welding tool for the connecting shaft of the shock absorber according to the embodiment;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is an enlarged view of portion B of FIG. 3;

fig. 6 is an enlarged view of a portion C in fig. 3.

In the figure, 1, a tool body; 11. a tooling groove; 12. positioning blocks; 121. a groove; 13. positioning a rod; 131. rotating the block; 132. rotating the handle; 2. a guide groove; 22. an annular block; 3. a guide bar; 31. a shaft body; 311. a connecting portion; 312. a sliding part; 32. a club head; 33. a first spring; 4. a limiting hole; 41. a first hole; 42. a second hole; 43. fixing the rod; 431. a first stabilizer bar; 432. a second stabilizer bar; 433. a third stabilizer bar; 44. a connecting shaft; 441. a rod body; 442. a snap ring; 45. a limit screw; 46. a first counterbore; 48. an inner tank; 49. a second spring; 5. a fixing hole; 51. a second counterbore; 52. a screw; 54. a limiting rod; 541. a first rod portion; 542. a second rod portion; 55. a limiting groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the connecting shaft of the shock absorber includes a connecting shaft 44, and the connecting shaft 44 includes two snap rings 442 and a rod body 441 connected between the snap rings 442.

Referring to fig. 2, for the utility model discloses a welding frock for bumper shock absorber connecting axle, including frock body 1, frock body 1 is inside including the frock groove 11 that is used for holding connecting axle 44, and frock groove 11 is greater than snap ring 442 along its axial length along the ascending length in the axial of snap ring 442, and frock groove 11 equals along the length of connecting axle 44 to the length of another snap ring 442's of one of them snap ring 442 of connecting axle 44 direction. A positioning block 12 is disposed in the tool groove 11 along the axial direction of the snap ring 442, and the positioning block 12 can abut against the snap ring 442.

Referring to fig. 3, a rotating member for driving the positioning block 12 to move is disposed on one side of the tool body 1 close to the positioning block 12, and the rotating member includes a positioning rod 13, a rotating block 131 and a rotating handle 132. The locating through groove of intercommunication frock groove 11 is seted up on the lateral wall that frock body 1 is close to locating piece 12, locating lever 13 leads to groove threaded connection with the location, be provided with recess 121 on the locating piece 12, recess 121 is hopper-shaped and its one end area that is close to locating lever 13 is the biggest, locating lever 13 can pass and correspond the butt with recess 121 behind the locating through groove, turning block 131 is connected with the one end that locating lever 13 kept away from frock groove 11, the outer wall and the rotation handle 132 fixed connection of turning block 131.

Referring to fig. 3 and 4, the side wall of the tool body 1 provided with the positioning through groove is provided with two guide grooves 2, and the two guide grooves 2 are respectively located on two sides of the positioning through groove. The positioning block 12 is provided with communicating grooves corresponding to the two guide grooves 2, the guide grooves 2 and the corresponding communicating grooves are provided with guide rods 3, each guide rod 3 comprises a rod body 31 and a rod head 32, each rod body 31 comprises a connecting portion 311 and a sliding portion 312, the connecting portions 311 are in threaded connection with the communicating grooves, and the diameter of the sliding portions 312 is larger than that of the connecting portions 311 and is in sliding connection with the guide grooves 2. The annular block 22 is fixedly connected to one end of each of the two guide grooves 2 close to the tooling groove 11, the annular block 22 is located in the guide groove 2, the diameter of the club head 32 is larger than that of the inner ring of the annular block 22, the diameter of the sliding part 312 is equal to that of the inner ring of the annular block 22, and the annular block 22 limits the guide rod 3 so that the club head 32 cannot slide into the tooling groove 11. The inner diameter of the guide groove 2 is larger than the diameter of the sliding part 312, the first springs 33 are arranged in the guide groove 2, and the first springs 33 are sleeved on the outer wall of the sliding part 312 and are positioned between the rod head 32 and the annular block 22. Referring to fig. 2, when the rotating handle 132 is rotated to press the positioning rod 13 against the groove 121 and press the positioning block 12 against the connecting shaft 44, the first spring 33 is compressed; when the handle 132 is rotated in the reverse direction to disengage the positioning through slot 121, the guiding rod 3 will drive the positioning block 12 away from the connecting shaft 44 under the resilience of the first spring 33.

Referring to fig. 3 and 5, a pair of limiting holes 4 is formed in the inner side wall of the tool groove 11 far away from the positioning rod 13 along the sliding direction of the positioning block 12, each limiting hole 4 comprises a first hole 41 and a second hole 42 which are communicated with each other, the inner diameter of each first hole 41 is larger than that of each second hole 42, and one end of each first hole 41 far away from each second hole 42 is communicated with the tool groove 11. The fixing rod 43 is arranged in the limiting hole 4, the fixing rod 43 comprises a first stabilizing rod 431 and a second stabilizing rod 432 which are fixedly connected, the first stabilizing rod 431 is located in the first hole 41 and attached to the inner wall of the first hole 41, the second stabilizing rod 432 is located in the second hole 42, the inner diameter of the second hole 42 is larger than that of the second stabilizing rod 432, and the diameter of the first stabilizing rod 431 is larger than that of the second hole 42.

Referring to fig. 3 and 5, one end of the fixing rod 43 near the tool groove 11 is correspondingly abutted against the snap ring 442. Specifically, the end surface of the first stabilizer 431 close to the tool groove 11 is in a circular truncated cone shape, and the area of the end surface of one end of the first stabilizer 431 close to the tool groove 11 is smaller than the area of the end surface of one end of the first stabilizer close to the first hole 41. When the connecting shaft 44 is placed in the tool groove 11, the end surface of the snap ring 442 is a horizontal surface, and the end surface of the end of the snap ring 442 close to the first stabilizer 431 abuts against the inner side wall of the tool groove 11, and the end surface of the end of the snap ring 442 close to the first stabilizer 431 is inclined towards the inner side wall to form an inclined surface which abuts against the end surface of the first stabilizer 431 close to the tool groove 11 correspondingly.

Referring to fig. 3 and 5, the second stabilizer 432 is sleeved with a second spring 49 for providing an elastic force to the fixing rod 43 in a direction toward the tool groove, specifically, one end of the second spring 49 abuts against an inner wall of the second hole 42, and the other end abuts against one end of the first stabilizer 431 adjacent to the second hole 42. The fixing rod 43 is provided with a limiting part for preventing the fixing rod 43 from separating from the limiting hole 4, the limiting part comprises a limiting screw 45, a first counter bore 46 communicated with the limiting hole 4 is formed in the outer side wall of one end, provided with the limiting hole 4, of the tool body 1, the limiting screw 45 is located in the first counter bore 46, and the diameter of the head of the limiting screw 45 is larger than that of a small hole of the first counter bore 46.

Referring to fig. 3 and 5, the fixing rod 43 further includes a third stabilizer bar 433, one end of the second stabilizer bar 432 away from the first stabilizer bar 431 is fixedly connected to the third stabilizer bar 433, the diameter of the third stabilizer bar 433 is equal to the inner diameter of the small hole of the first counterbore 46, the third stabilizer bar 433 is slidably connected to the inner wall of the small hole of the first counterbore 46, the inner diameter of the small hole of the first counterbore 46 is smaller than the diameter of the second stabilizer bar 432, an inner groove 48 penetrating through the fixing rod 43 is formed at one end of the fixing rod 43 close to the first counterbore 46, a rod portion of the limit screw 45 penetrates through the first counterbore 46 to be in threaded connection with the inner groove 48, and the head portion of the limit screw 45 abuts against the bottom.

Referring to fig. 3 and 6, a fixing hole 5 is formed in the inner side wall of the tool groove 11 away from the positioning rod 13 along the sliding direction of the positioning block 12 (refer to fig. 2), the fixing hole 5 is located between the two limiting holes 4, and a limiting rod 54 for limiting the position of the rod body 441 is arranged in the fixing hole 5. The limiting rod 54 comprises a first rod portion 541 and a second rod portion 542, a second counter bore 51 communicated with the fixing hole 5 is formed in the outer side wall of one end, provided with the fixing hole 5, of the tool body 1, and a screw 52 is arranged in the second counter bore 51. The inner diameter of the small hole of the second counterbore 51 is equal to the diameter of the second rod portion 542, and the inner diameter of the small hole of the second counterbore 51 is smaller than the diameter of the first rod portion 541. One end of the limiting rod 54 close to the second counter bore 51 is provided with a limiting groove 55 penetrating through the limiting rod 54 along the sliding direction of the positioning block 12 (refer to fig. 2), the rod part of the screw 52 penetrates through the second counter bore 51 to be in threaded connection with the limiting groove 55, the head part of the screw 52 abuts against the bottom wall of the second counter bore 51, and one end of the limiting rod 54 close to the tool groove 11 abuts against the rod body 441.

The implementation principle of the embodiment is as follows:

when the welding tool is used, the handle 132 is rotated to drive the positioning rod 13 to rotate until the length from one end of the fixing rod 43 close to the tool groove 11 to one end of the positioning block 12 close to the tool groove 11 is slightly greater than the length of the clamping ring 442 in the axial direction, then the connecting shaft 44 is installed in the tool groove 11, the handle 132 is rotated to enable the positioning block 12 to abut against the connecting shaft 44, the connecting shaft 44 is located between the positioning block 12 and the fixing rod 43, one end of the limiting rod 54 close to the tool groove 11 abuts against the rod body 441, and pre-welding is performed at the moment.

After the pre-welding is completed, the rotating handle 132 is rotated, and at this time, the guide rod 3 drives the positioning block 12 to move in a direction away from the connecting shaft 44 under the effect of the resilience of the first spring 33, and then the connecting shaft 44 can be taken out.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a welding frock for bumper shock absorber connecting axle which characterized in that: the tool comprises a tool body (1), wherein a tool groove (11) used for accommodating a connecting shaft (44) is formed in the tool body (1), the length of the tool groove (11) in the direction from one clamping ring (442) to the other clamping ring (442) of the connecting shaft (44) is equal to the length of the connecting shaft (44), a positioning block (12) is arranged in the tool groove (11) in a sliding mode along the axial direction of the clamping ring (442), and the positioning block (12) abuts against the clamping ring (442); the fixture comprises a fixture body (1), and is characterized in that a positioning through groove is formed in the outer side wall of one side, close to a positioning block (12), of the fixture body (1), the positioning through groove is formed in the outer side wall of the fixture body (1) in a extending mode towards a fixture groove (11) and is communicated with the fixture groove (11), a positioning rod (13) is connected to the positioning through groove in an internal thread mode, and the positioning rod (13) penetrates through the positioning through groove to stretch into the fixture groove (11) and is abutted to the positioning block (12).

2. The welding tool for the connecting shaft of the shock absorber according to claim 1, wherein: the side wall of the tool body (1) provided with the positioning through groove is also provided with two guide grooves (2), and the two guide grooves (2) are respectively positioned at two sides of the positioning through groove; the positioning block (12) is provided with two communicating grooves corresponding to the two guide grooves (2), the two guiding grooves (2) are internally provided with guide rods (3) in a sliding mode respectively, the guide rods (3) extend into the communicating grooves from the guide grooves (2), and the guide rods (3) are fixedly connected with the communicating grooves.

3. The welding tool for the connecting shaft of the shock absorber according to claim 2, wherein: a pair of limiting holes (4) are formed in the inner side wall, far away from the positioning rod (13), of the tool groove (11) along the width direction of the tool body (1), and fixing rods (43) are arranged in the limiting holes (4); the two limiting holes (4) respectively correspond to the positions of the two clamping rings (442), and one end, close to the tool groove (11), of the fixing rod (43) is abutted to the corresponding clamping ring (442); the fixing rod (43) is sleeved with a second spring (49) which provides elastic force towards the direction of the tool groove (11) for the fixing rod (43), and the fixing rod (43) is provided with a limiting part which prevents the fixing rod (43) from being separated from the limiting hole (4).

4. The welding tool for the connecting shaft of the shock absorber according to claim 3, wherein: the limiting piece comprises a limiting screw (45), a first counter bore (46) communicated with the limiting hole (4) is formed in the outer side wall of one end, provided with the limiting hole (4), of the tool body (1), and the limiting screw (45) is located in the first counter bore (46); an inner groove (48) is formed in one end, close to the first counter bore (46), of the fixing rod (43), the rod portion of the limiting screw (45) penetrates through the first counter bore (46) to be in threaded connection with the inner groove (48), and the head portion of the limiting screw (45) abuts against the bottom wall of the first counter bore (46).

5. The welding tool for the connecting shaft of the shock absorber according to claim 4, wherein: the end face of the clamping ring (442) inclines towards the inner side wall of the clamping ring, and the end face of one end, close to the tool groove (11), of the fixing rod (43) is a circular truncated cone-shaped end face corresponding to the clamping ring (442).

6. The welding tool for the connecting shaft of the shock absorber according to claim 5, wherein: a fixing hole (5) is formed in the inner side wall, away from the positioning rod (13), of the tool groove (11) along the width direction of the tool body (1), the fixing hole (5) is located between the two limiting holes (4), a limiting rod (54) is arranged in the fixing hole (5), and one end, close to the tool groove (11), of the limiting rod (54) abuts against the rod body (441); a second counter bore (51) communicated with the fixing hole (5) is formed in the outer side wall of one end, provided with the fixing hole (5), of the tool body (1), and a screw (52) is arranged in the second counter bore (51); a limiting groove is formed in one end, close to the second counter bore (51), of the limiting rod (54), the rod portion of the screw (52) penetrates through the second counter bore (51) to be in threaded connection with the limiting groove, and the head portion of the screw (52) abuts against the bottom wall of the second counter bore (51).

7. The welding tool for the connecting shaft of the shock absorber according to claim 2, wherein: one ends, close to the tool groove (11), of the two guide grooves (2) are fixedly connected with annular blocks (22), each guide rod (3) comprises a rod body (31) and a rod head (32), the diameter of each rod head (32) is larger than the inner diameter of each annular block (22), and the inner diameter of each annular block (22) is equal to the diameter of each rod body (31); two all be provided with first spring (33) in guide way (2), first spring (33) cover is established on pole body (31) and one end and pole head (32) offset, and the other end offsets with cyclic annular piece (22).

8. The welding tool for the connecting shaft of the shock absorber according to claim 1, wherein: one end, far away from the tool groove (11), of the positioning rod (13) is connected with a rotating block (131), and a rotating handle (132) is fixedly connected to the outer wall of the rotating block (131).